Honda Civic CVT Transaxle Operation

[@WeberAuto]

Hi, yes, the start clutch connects the transmission driven pulley to the final drive when the vehicle needs to move. It is a computer controlled wet clutch, so it can last a very long time including allowing a small amount of grab at stop lights.

[@kgbreviews35]

Quick question about honda Accord Cvt's, I have a 17 sport. And I am considering trading it out of fear of failure. In your opinion, do you think I should keep it. Or do your think a 2015 toyota camry with the 6 speed automatic transmission is the better way to go?

[@WeberAuto]

Ineptocracy Wonder. The 2014 and newer Honda CVT's have been redesigned are are much improved. I would have no hesitation regarding owning a vehicle with one. We will have a detailed CVT video in about a month. Thanks for watching.

[@Officialy-KECHIO]

WeberAuto I love my cvt in my maxima

[@Wdf582051]

no worries i have plenty of hesitation to co around, and so does the cvt when you try to overtake.

[@lparson32526]

+WeberAuto Do you have the video on the new Honda CVTs yet?

[@Wdf582051]

when the start building DCTs ill be sold. Until then 5 or 6 speed on any honda i may buy in the future.

[@austinbutler1985]

My wife has a 2013 Accord with the CVT. No issues so far and it eliminates that high rpm acceleration that 4 cylinders are famous for! It accelerates with constant power, I love that. I've always hated accelerating and the engine jumps up to 2500 rpm to get some power. Now it's about 1500 rpm because the CVT is adjusting the gear ratio as you drive. We get a little rubber banding when slowing down but not a big deal.

[@WeberAuto]

Hi, No, the flywheel is external to the transmission case and is always rotating the input shaft. No power is transferred to the wheels until the start clutch is engaged. The start clutch connects the transmission output shaft to the final drive unit.

[@WeberAuto]

Thanks for the nice comments. As you know, top students and good technicians are hard to come by. All of ours are already taken.

[@alexhatcher8812]

Still driving a 2003 HCH with my DIY rebuilt trans after belt failure. this video is never old.

[@imAgentR]

Congrats!

[@JrBlaneknship]

I had a 2011 Honda with CVT, Jerkey and slow to engage from Park to Drive gears especially in cold weather. I now have a 2015 Honda CVT Civic... much improved, smooth in and out of gear and engages right away, no lag and no bobbing upon acceleration.

[@WeberAuto]

That is great to hear! The new CVT from Honda added a torque converter and got rid of the start clutch. Much improved! Thanks for watching!

[@techie0075]

@@WeberAuto If they were smart, they would drop the converter and clutch altogether and let the electric motor handle that power range smoothly, firing up fuel injection once the vehicle got to 10-20mph and the engine RPM was high enough to run the engine. But their battery system sucks too much to rely on, and they know it. Plus they seem to have this "add-on" mentality about the IMA. Oh well!

[@Budhsingh-ju8ou]

Hi sir plz assist me , i have civic 2018 cvt 2.0 liter engine , recently i change hcf2 fluid and i drove 50 km on road and feel burn smell and i check level bolt and drain 250 ml hcf2 fluid, my question is should my transmission and fluid is fine or in future my cvt fail , but I didn’t hear any noise . Thx advance

[@Alex_Bket]

What type of fluid do you use ? Do you have use the oem ?

[@alvinnatta2686]

I have a problem where my input shaft have broken inside the torque damper, I’m wondering we’re I could get a input shaft to replace I can’t find it online

[@therealwillie2024]

Could I use a 2012 rebuild kit for its updates on a 96-99

[@LBNDN]

What would cause a grinding sound as soon as i go into drive and accelerate ? It seems to be progressing louder.

[@Julius.mureithi70]

So if I drain the cvt fluid from the transmission nothing remains because it doesn't have torque converter

[@Julius.mureithi70]

I changed transmission fluid for my 1999 Honda civic Ferio CVT and instead of putting CVT fluid I by mistake put ATF .it ran for 40000km before I realized and changed back to CVT oil. It slips a bit when. I dont understand what was damaged. It takes time to grip a gear.i dont know if I need to change the belt or the clutches or gears it the whole transmission

[@Glen48m]

Mine work during the day but not at night I use D for day and N for night???

[@WeberAuto]

+Glen Dooer Thats an old one, but a good one! Thanks for watching!

[@2000daffa]

and r for race mode

[@04Saleen256]

What's different between this CVT and the newest CVT found in the '16/17 Civic Turbo?

[@WeberAuto]

The newer CVTs use a torque converter rather than a start clutch to control the engine-to-transmission connection. They are much more reliable now.

[@jbw9999]

Some people that have turned up the boost too high have scored their CVT belts and ruined it. It can safely handle a bit more power than stock but doesn't handle much. Low end torque is the main problem, and the factory tune has a lot of low end power, so now they've figured out you can tune it to smooth out the power curve at the low end and shift the torque to higher RPM's, and get away with a little more power than they normally would be able to without scoring the belt. Still, the manual transmission allows much higher power. People are getting crazy power out of the little 1.5T with a manual (especially with a high blend of Ethanol).

[@dcsymbols4450]

so a problem with the start clutch would make a horrible engagement on take off and reverse?

[@WeberAuto]

+Bipolar Transition Hi, yes. It is a common problem.

[@jd2931]

Is this the same trans as a 2009 Honda civic hybrid?

[@Shaolin108]

My 2003 Civic 1.3L often has a hard jerk and then bucking action during decleration? Any ideas what's causing this and is there an easy fix. This is the second transmission.

[@WeberAuto]

+Shao lin Hi, there is a recalibration procedure for the start clutch in the transaxle. make sure that has been done. Best wishes!

[@JoseTemores-r9x]

Hello I have a 09 Honda civic hybrid with a cvt transmission I’m having issues with it I just purchased the vehicle I put it in D-S-L and it seems to be stuck in first gear I already change the transmission fluid and it’s still doing the same thing any idea what could be

[@JomsF]

Weberauto - honda released Brio 2019 witb CVT, 1.2 L12bi engine, made a test drive very smooth, honda CVT really improved a lot and relieable?? Or just use manual? Super heavy traffic in manila, tropical country philippines.. hope to hear from you

[@201950201950]

I have a 2001 honda civic gx. This morning i noticed my transmission is jerking a bit in the mornings. I am told most shops don't want to rebuild these. A transmission tech told me they never work well after they are rebuilt.

[@WeberAuto]

Make sure your fluid level is correct and is of the proper Honda CVT fluid, not transmission fluid. They work just fine after rebuilding as long as all the parts are replaced that should be. It is a very expensive repair to do correctly. I recommend normal driving (not aggressive), it could last for many years like that. Best wishes!

[@dboucher26]

CVTs are horrible whether they’re brand new, rebuilt or worn. Your best bet is to get rid of that money pit.

[@skillz1855]

Looks easier to rebuild than a convention transaxle, haven't torn one open yet but I have an 03 civic hybrid at the shop now to do..any advice or things to look for b4 i tackle it

[@theactivenerd6625]

What i want to know is if there is a better belt i can get that will handle higher amounts of power....

[@WeberAuto]

There are many sizes of belts, Bosch makes most of them.

[@theactivenerd6625]

@@WeberAuto I don't need a different size belt but rather, a more durable belt the wont burn out or snap at higher hp more often. I'll check out Bosch though.

[@kevinb21]

Question regarding acceleration from a stop. I apologize if this has been asked and answered. I looked all the way through the comments, and didn't see it. My 2006 Civic Hybrid is extremely slow on takeoff, even though I have the gas pedal floored and the a/c off. Do you think that could be the start clutch? Or would something else cause that type issue? Thank you for the video. It was very clear and informative!

[@RG-tm7uq]

I have the same problem with my 2009 Civic hybrid but I also have a large vibration for a moment while first accelerating

[@Farhad_ZKD]

@@RG-tm7uq Burnishing would fix the vibration

[@techie0075]

If it was the start clutch, your engine would surge to high RPM immediately when flooring the accelerator (just like what happens if you put the car in Neutral and floor the accelerator). It sounds more like an IMA problem to me, as the IMA is what provides the instant torque at start out. I know that when the IMA is switched off (via the switch in the back) that the car has very low power and slow CVT response. I haven't investigated yet to see whether this is due to a lack of IMA power or due to the PCM entering a limp-home mode. When there's a CVT error code, the PCM can limit the engine power and max RPM. But the Drive indicator should be flashing if that is the case.

[@humberthernandez5693]

Tengo un hybrid honda civic el problema es cuando lo pongo en D camina pero si acelero se jalonea camina pero ba mas aselerado y pa el indicador de la letra D parpadea que podria ser

[@WeberAuto]

A flashing D indicator means there is a trouble code for the transaxle. You will need a scan tool to read the code. Best wishes

[@ThantiK]

How difficult would it be to mate a CVT such as this one to a different car? Are there any CVTs out there that are electronically controllable, and could potentially be retrofit onto older engines?

[@WeberAuto]

+ThantiK Hi, it would be very difficult to do that. CVTs are tuned to a specific engine to give the best performance and economy. Thanks for watching!

[@ThantiK]

WeberAuto, I'm a versed mechanical and electronics engineer. Would there be a specific model transmission which would be best to start with?

[@WeberAuto]

+ThantiK It depends upon what your objective is. I would pick one from a vehicle that most closely resembles what you are trying to accomplish. Remember, most CVTs are mated to small engines with relatively low power. The CVT allows the illusion of having more power by keeping the engine RPM in the narrow band where the small engine has the most power anyway. The JATCO CVT seems to be holding up the best. It is used in Nissan and Chrysler products. Best wishes!

[@Osillius]

+ThantiK I recall watching a video about a CVT in which the pulley sizes were controlled by centrifugal force acting on a spring loaded mechanism. It seems like that could be applied to any vehicle that could physically mate to the transaxle provided you tuned the weights to the desired power band of the drive motor.

[@techie0075]

@@ThantiK Except for the mode handle that controls the forward clutch and reverse clutch, this CVT is electronically controllable. It's actually very simple to control: Literally three 12v solenoids control everything. Drive pulley, driven pulley and start clutch. The PCM controls them with a 195 Hz PWM signal that never goes above 50% duty cycle. For feedback, you have three 5v speed sensors that read the same (drive/engine, driven/clutch, clutch/axle). They are relatively fast, but whatever idiot that designed the speed sensors set the ratio between the latter two at 1.433 instad of 1/1 for some reason (500 Hz = 1000 RPM, 10 MPH, 7 MPH). The hard part is determining what tension the belt needs as there is no feedback to determine belt position and thus slippage. It also appears that the two pulley solenoids are backwards, where less power equals larger pulley. I am wondering if the pulleys are spring loaded, with the hydraulics relaxing belt tension instead of applying it.

[@CoolandDesign]

On a Honda hybrid like this (I own a 2011 Insight), I'm curious if the starter that cranks the engine after it's been on auto-stop (at a stoplight) is the same as the one when you turn the key... or if the electric IMA motor somehow plays a role

[@WeberAuto]

The IMA motor starts the engine after an auto stop. It is much faster and makes no sound

[@techie0075]

The IMA motor always starts the engine, whether by key or resuming from auto-stop, unless the hybrid battery is empty. In which case it falls back and uses the conventional starter to start the engine. You can tell the difference by how the engine starts...when the IMA motor starts it, the engine just purrs to life instantly. When the starter motor starts the engine, there's a one second delay followed by the traditional gear starter sound.

[@5ervicemonkey]

Thanks 007 Good to know. 03 civic hybrid 5-speed. Yes, startup is usually silent but I can hear a conventional starter rarely, like when the batteries are discharged. So there IS an extra starter motor.

[@christurner6430]

According to Honda the hybrid engine is started/turned by the under bonnet (hood!) battery which powers the IMA coils. There ain't a starter motor! It's a parallel hybrid system.

[@Perry_Fan]

Hello Sir, I like to ask you a question regarding my 2002 Honda Insight CVT with 109,000 miles, I have this issue of the Transmission going in and out of overdrive at say a steady speed of 60 MPH on a flat road with my RPMs at around 2200 RPMs in OD, then switch to 3000 RPMs for no apparent reason, then back in OD again.... I've changed the 2 filters in the transmission along with 4.5 quarts of Honda Specific CVT fluid. NOTE the filters were pretty black and the magnets had this pasty "black Soot" on them. I cleaned out all Magnets, replaced the 2 Filters and seals. I drove the car and the first thing I noticed was a smoother operation and OD would work for longer periods of time now. BUT on the same road today the issues were back, as it seems to slip In & out of OD and drop down to the next lower speed/gear in which the RPMs would shoot up to like 3000 plus RPMS.... What can be the problem? When it all works the MPG is GREAT like 65 MPG, but when it slips out of OD it goes way down to 47 MPG! I mean I can actually see the "Instant MPG gauge go from great MPG to Poor MPG right before my eyes....frustrating to say the least.... Any Ideas? Thank you In Advance =)

[@WeberAuto]

There is a part called the start clutch which is responsible for transferring the engine torque to the CVT drive pulley. It could be slipping

[@Perry_Fan]

@@WeberAuto it starts off perfectly fine, from what I've read the Start clutch just allows a smooth transition from a total stop to motion at low speed. I think I figured it out anyway, I was running off the engine alone without the IMA hooked up because it was in a poor state. Once I reconnected the IMA it shifts just fine and now doesn't swing high and low as it was before.

[@jamesharris6315]

I have a 2003 Honda CIvic Hybrid and my CVT vibrates badly upon initial acceleration. I changed the fluid out 3 times like the dealership suggested and it still vibrates the same. What is doing the vibrating inside the transmission and is there something I can replace like the belt or the start clutch to fix this? I cannot spend $4k for a new transmission but would like to stop the vibrating. Please contact Jim with any ideas.

[@WeberAuto]

James Harris it sounds like the start clutch is bad.

[@jamesharris6315]

Thanks for the fast reply! Is it possible to take the trans out and apart and replace that start clutch? I am not a mechanic but I have replaced the harmonic balancer on a 98 Jeep and other semi difficult work but this seems like a much harder task. Everything still works and there is no slipping so that is good. Not sure what is doing the vibrating and why its only at the start but that is why I also thought of the start clutch. I want to sell the car and I am afraid people will not buy it if it makes this vibration. Is there any additive I can put in there to dampen the vibration?

[@WeberAuto]

James Harris it is difficult to replace. It requires a special puller and installer for the start clutch. The start clutch replaces a torque converter in a regular transmission. It jerks because is cannot smoothly connect the engine's power to the transmission output shaft.

[@jamesharris6315]

I assume only Honda has this special puller / installer and is not publicly available? Do you know any experts in the St. Louis area who can rebuild this transmission because the dealership will not?

[@WeberAuto]

Yes, they are Honda tools, but by law you can purchase them. See www.nastf.org for more information.

[@yves2075]

I drive a BMW-made 2004 Mini. It has a BMW-engineered CVT. The CVT is still going strong. There are people complaining of failures (and worse, Mini won't replace CVTs after guarantee!) but mine is still doing good at 130K km. I keep my fingers crossed. The CVT Mini gives no "driving pleasure" as enthusiasts put it, but it's nice to drive around, very zippy, well, except if you want to briskly overtake, it'll take a while to accelerate. For some reason (reliability and costs I believe) BMW stopped putting CVTs in Minis, and I believe, in any other car. It's a shame, I'm sure at some point, CVTs will make plenty of sense when reliability+slippage+torque issues are solved.

[@WeberAuto]

+yves2075 Thanks for the feedback!

[@Jimothy-xg9qt]

Quick question, probably not something that can be answered wihtout taking the trans out of the car and breaking it apart but. I was driving to run an errand and floored it. My car is a 2014 honda civic LX 177k miles and from what i can recall i've never changed the fluid once. With that being said the car felt like it slipped when i floored it and i was not able to get it back into gear once that occured. What do you think could have broke inside of the transmission(if anything). Yes i haveattempted to change the fluid 2 times so far but not the transmission filter yet. thanks in advance.

[@jvolstad]

I drive a 2001 Honda Civic HX with CVT. 200K miles and still going strong. Great gas economy. What do you think about the new DCT transmissions?

[@WeberAuto]

The new DCT transmissions are very cool! I will have a video on them very soon.

[@Methnerjacob]

WeberAuto YAY I've been wanting to see a video on that.

[@WeberAuto]

Jake Methner My video is completed, see my Ford Dual Clutch Transaxle (DCT) DPS6 video. kzbin.info/www/bejne/bJqmg6F3isunrKs

[@angelestuardoroqueorozco1439]

hi dear friend, a hug from Guatemala, thanks for your videos that many have been taught. Please ask a little advice, my car is the Honda Civic Hybrid 2004 1.3 CVT automatic with SZCA, I had the bad situation that has broken the chain, and have and am about to replace it but I see that the new chain has a orienting arrow my question is where you should target this arrow? and please if you have any other advice to help me to have my car running well I really appreciate it ... will stay attentive to your comment ...

[@WeberAuto]

Angel Roque Hi, I am sorry, I do not have that information. Best wishes and thanks for watching!

[@jimmyblack8486]

hi I have a 03 Honda civic hybrid. I recently replace the flywheel. once the car got put back together my car feels like it doesn't shift. it stays in first. I got a diagnostic and they said the drum is bad?..any ideas on the what the issue would be

[@WeberAuto]

I assume you have a CVT transaxle. Why did the flywheel get replaced? That work may be related to what you are experiencing.

[@jimmyblack8486]

The flywheel was replace because the teeth in the middle was bald and flat.. the flywheel was part of the problem?

[@WeberAuto]

Good to hear. The stripped out teeth would have prevented the car from moving. I suspect the problem you have now (not feeling like it is not shifting) is related to the flywheel being changed. In other words, whomever replaced the flywheel may have left something disconnected, broke something, or did not add enough of the correct CVT fluid to the transmission when they were completed. It is highly unlikely that this problem existed prior to the flywheel replacement. Find another shop to check it out for you. Make sure the fluid type and level are correct. Best wishes!

[@jimmyblack8486]

Cool when problem occur is when I was driving from school. All of a sudden the car felt like it stop going. Just to be sure my first steps would be check the fluids and level? Don you recommend taking apart the transmission again?

[@WeberAuto]

No, I would not disassemble the transmission. Just make sure the fluid level and type are correct. The fluid level check is very special, be sure to read the directions.

[@codystephenson1042]

So i have a 2004 civic hybrid what makes them destroy the speed sensors on the back of the trans

[@radaliyagodatech7182]

Plz video honda city gd8 cvt gearbox

[@jasonpucgreen]

Where can i get a replacement chain from for my 2019 honda civic sedan?

[@vertzoo6074]

fuckin autozone?

[@abrahamabraham7629]

hello query As the metal strap does not slip on the pulley and holds firmly and rotate without slipping? appreciate an answer thanks

[@claramunoz2807]

What brand of belt should I buy for my Honda Civic

[@WeberAuto]

Good question, Honda does not sell parts, so you are stuck with aftermarket parts. Best wishes.

[@claramunoz2807]

+WeberAuto can u plz text me 3238300028

[@oscarangeles7821]

I'll text you

[@CoolandDesign]

I'm trying to differentiate between the forward clutch and the start clutch Is the forward clutch always engaged in Drive and disengaged in N and P? So that means the start clutch is what gets disengaged when the car is braking and under a certain speed as well as when the car is stopped and the CVT belt is constantly moving when the engine is on?

[@WeberAuto]

The start clutch replaces a torque converter, it is used any time the vehicle moves forward or backwards. It connects the driven pulley to the final drive gear. The forward clutch only is used when moving forward. it connects the input shaft to the drive pulley.

[@CoolandDesign]

Thanks for the answers. My question is, when the car is stopped with the engine on, which clutch is disengaged?

[@CoolandDesign]

Also, if I put the car in Neutral, which clutch is disengaged?

[@CoolandDesign]

just trying to understand for general knowledge

[@WeberAuto]

Think of the start Clutch as the part that makes the vehicle move forward or backwards. If you stop the vehicle, it is released.

[@paivasteveable]

My dads 05 cvt hybrid civic auto when he puts it in drive loud noise kind like plates spinning what could this be ?

[@michaelgreene6372]

Hello WeberAuto I have a 2004 Honda Civic Hybrid with a CVT transmission that just went out. Can not afford the 4k for a transmission place to replace the transmission so I am doing it myself. The transmission does not go in any gear or reverse. Was wondering what you think it maybe, the belt or start clutch? Just a guess, want to price the parts and have them here when I take it apart. Thank You!

[@WeberAuto]

It could be something as simple as stripped out flywheel splines. This prevents the input shaft from rotating and the vehicle will not move. This will also cause the input shaft speed sensor to read zero rpm wit the engine running, it should equal engine rpm. There are scan tool tests for the start clutch and the flywheel. The belt is also a possibility, but you will easily see the belt parts inside the transmission when you disassemble it. Best wishes.

[@michaelgreene6372]

When I drained the transmission fluid pieces of something started to come out, Some look like metal clips, and pieces of harden plastic. Looks like that belt, what you think?

[@bbjca737]

Michael Greene i

[@1andonlydyoung]

WeberAuto is the flywheel a easy fix?

[@kashyappateljalaramtrading5201]

I owned a Honda Civic 2006 Cvt in India. It was all well till last year. My vehicle countered a problem it does not move forward in D/S/L. But if I keep ignition ON for half hour, it will move forward. Is there any temperature related problem??? B'coz it take more time in cold weather. Authorised workshop also got fail to fix. I got fed up with this problem. It will be great if you guide me to troubleshoot. NOTE :- Its pretty normal for R(reverse). It works normally once started moving in D/S/L.

[@WeberAuto]

Hi, it does sound temperature related. Make sure the fluid level is correct and is the correct fluid. If reverse works, but forward does not until it is warm, it sounds like a hydraulic problem with the forward clutch. Best wishes.

[@briancarroll6803]

2015 Honda Civic with a CVT being weird. I feel sure it went well over 100k miles without a fluid change. So I'm aware that's the cause, but I can't work out what's happening. I did a fluid flush once I got my hands on it. When the fluid is cool it takes off fine, but once it's warm, it slips bad starting off through 1st. If you move the shifter down to low to start off, it does just fine cold or warm. Does anyone have any help to offer my puzzled brain? Thank you 🙏

[@efrenmelendez5832]

Hello, wondering if you can give me some advise. I own a 2003 Honda Civic Natural gas with CVT transmission. The problem is that in the morning or when its cold the transmission does not engage. Once it warms up 15 - 25 minutes later, it'll engage and run like normal. Is there an easy fix to this? hopefully...

[@WeberAuto]

There is a part called the "Start Clutch" that has had problems. Not an easy fix

[@aguilera0510]

thanks for the video. I have a problem with my 2005 Honda Civic Hybrid CVT transmission. It started with the transmission mounts (so I think) jerking or sputtering. now it won't go into any gear. What do you think is the problem? Will I have to replace whole transmission? Are there any recalls? I appreciate any helpful information. Thank you.

[@WeberAuto]

+Rene Aguilera Hi, there is a service bulletin for the flywheel splines stripping off inside the flywheel. This prevents the flywheel from rotating the transmission input shaft. This does not damage the transmission, you may just need a new flywheel. Best wishes!

[@aguilera0510]

Thank you very much for your response. I was thinking of selling my car because of the thought of having to replace the whole transmission. So the flywheel is what helps the transmission shift into all the gears? Right now it won't shift into any gear. Thank you again.

[@WeberAuto]

Rene Aguilera Yes, a bad flywheel will prevent the vehicle from moving forward or backwards. It is easy to tell of the flywheel is bad once the transmission is removed, all the spline teeth will be stripped off. A new Flywheel is a lot less expensive than a new transmission. If the flywheel is good, then something inside the transmission is bad. There are other bulletins for a CVT belt or the start clutch going bad internally. Might still be covered under warranty unless your odometer miles are too high. Check with the Honda dealership.

[@cameronmccollister5249]

​@@WeberAutowhere can I find one of these flywheels specifically for 2004 civic hybrid

[@lexicorp69]

What is the function of the start clutch? I have a transmission when shift on D or R engine dies some times this will cause the problem?

[@WeberAuto]

This transmission does not have a torque converter. The start clutch mimics the fluid coupling of a torque converter. Yes, it can kill the engine when it has a problem. There are updated start clutch and valve bodies for some models. There is even an extended warranty for some models as well. Best wishes.

[@MrShezi2243]

Hi there. Beautiful demonstration of the gear system. I have a query which would really like you to answer. I have a 2016 Honda vezel which is the Japanese equivalent of HRv and its hybrid. It jas built-in DCT which is notorious for clutch failures. Can we swap the dct with a CIVIC X CVT which is very less likely to have long-term gear issues. Waiting for an answer please. Regards

[@WeberAuto]

Sorry, no

[@techie0075]

I have a question you may be able to answer... So I've hacked my 2006 Civic Hybrid because the PCM makes erratic and crazy pulley ratio decisions and I know I can do a lot better with a little micocontroller (if the PCM will tolerate it, which I have yet to see) and improve the mileage (and maybe even the CVT life, if I know what I'm doing). Currently, I'm just monitoring how the PCM controls it and mirroring those signals to the CVT because I'm afraid of setting the tension wrong and snapping the belt with the hydraulics. However, it appears that the hydraulic pulley control solenoids DECREASE the pulley size/tension, rather than increase it. So my question is, are the pulleys spring loaded to tension the belt, with the hydraulic solenoids providing relief of the tension so the belt will move the other way while the other spring takes up the slack? Currently I can see that the PCM's algorithm is A + B = tension release, and B - A = pulley ratio.

[@saifalmosuli8419]

What is the Direction of the CVT belt?

[@WeberAuto]

+saif almosuli Hi, it is a push belt; the drive pulley pushes the driven pulley through the belt so the belt does not stretch. It spins the same direction as the engine driving it.

[@madmurdock2968]

John, good video. How difficult is it to replace the CVT Belt?

[@WeberAuto]

+Mad Murdock Hi, you should never just replace the belt. Both pulleys need to be replaced too. Thanks for watching!

[@fiddlerpin]

Might as well replace the transmission. Parts are unavailable on line.

[@geovanemaia9307]

CVT do Civic 10? Embreagem de partida e conversor de torque, isso mesmo?

[@WeberAuto]

Start clutch replaces a torque converter

[@geovanemaia9307]

WeberAuto Valeu amigo obrigado.

[@geovanemaia9307]

WeberAuto CVT Honda Civic 10?

[@russrtspooling7702]

which is more reliable the toyota CVT or the Honda?

[@axenz1]

Hi, what is the best Fluid for this CVT ? Thanks

[@WeberAuto]

axenz axtiz Always use Honda CVT fluid in a Honda CVT. It is green in color. Thanks for watching!

[@axenz1]

Thanks and appreciated :)

[@reginaldsmall3766]

Use amsoil. 100% synthetic

[@techie0075]

@@WeberAuto I agree with always using the Honda CVT fluid, but mine is perfectly clear. I wonder why the difference...

[@thromboid]

I was also wondering what fluid to use. I've noticed that some aftermarket CVT fluids specifically say they're not suitable for Honda CVTs with start clutches. It seems the fluid can degrade faster than expected, and shorter service intervals are probably a good idea.

[@michaelchristopher9444]

How much horsepower can these units hold? When you see those drag race covics that have 1000hp are they using these transmissions or are they using something else ?

[@JohnS-il1dr]

these transmissions are maxed at 190 - 225 hp. theres a reason you do not see trucks equipped with these junks. the belt would snap from the torque output

[@marcsee4072]

Hi all, looking for some opinions on CVT noise - high pitched, whining noise after 30min driving or so. The car was inveloved in rear end accident - quite strong one. I have stopped on the lights and then car hit me from the back at around 40km/h... also i was on the full break as I just stopped - the car was pushed about 1 meter in front. since then the high pitched, whining noise started. Now the insurance company questions this and suggesting wear and tear... is there any thing connecting and disconnecting when the car is stopped and can this mechanism be damaged by heavy impact (rattle like) in the accident? thanks m

[@WeberAuto]

Yes, the shock of a collision can cause bearing Brinnelling (small indentations in the bearing rollers and bearing cups which can lead to a whining noise. Best wishes.

[@clarencetrinidad9149]

I have a 2007 Honda fit with CVT with 235k. Any recommendations on keeping it in top shape? Would it be worthwhile to use performance cvt fluids such as redline cvt fluid or is OEM honda ok. Your input is appreciated!

[@WeberAuto]

Hi, no. Keep using the original factory fluid only. That is one reason it has lasted as long as it has.

[@jeandaumdesanchez9346]

i have a 05 honda civic 1.3 automaic transmission the problem is no reverse or forward is there anyone who can help me

[@WeberAuto]

A common problem. Probably stripped torque damper splines where it connects to the transaxle input shaft. You can verify by watching transmission input speed sensor with the engine running in drive. It should match engine RPM, if close to zero. you will need a new torque damper ($600 part).

[@vighneshramesh2569]

Very smooth and has improved acceleration. I have the 2014 civic with cvt and it’s faster than my friends 2013 5 speed auto.

[@skyguy1988]

civics with cvts are fucking dream cars. i LOOVE LOOVEE driving my 2015 with the 1.8 with cvt! very fun ;D

[@gerrythrash6563]

@@skyguy1988 Until something goes wrong. My 2015 Civic's CVT failed on me this weeks. It's going to cost close to $10,000 to replace.

[@skyguy1988]

@@gerrythrash6563 i would just get a new car at that point...

[@coltenphillips8174]

So do cvts not connect to a automatic transmission

[@WeberAuto]

james notbond CVTs are a transmission. Thanks for watching!

[@TheMenghi1]

Could someone please explain whether or not it is truly necessary to drain the CVT fluid on my Honda Accord on 30000 miles?

[@MrRahimhosein]

You should change it. Its the break in period. Just change it and dont be cheap with your car.

[@christurner6430]

It's cheaper in the long run to change the CVT oil every 25,000 miles. The oil has a very hard life!

[@axenz1]

My Honda Civic CVT gearbox needs to warm up 20mins to 35mins to engage the start up clutch. I can force it to 15mins by push more throttle, but the engage gear is a big bang reverse and forward, the bad things also when release throttle then push again creates big bang engage. What are the causing it?

[@techie0075]

Yeah you don't want to do that. Sounds like your start clutch is sticking. At best you'll burn out the clutch. At worst, you could snap an axle, snap the CVT belt, or strip out the splines on either the engine/CVT joint or CVT/axle joints.

[@noakhrot]

Which company makes the best cvt or most reliable cvt?

[@BroadwayLTDProductions]

None they are all junk!

[@hydrothermalworm7778]

2018 honda civic CVT is fine on startup, but once warmed upbucks slightly and audibly (though quietly) back and forth before accelerating, same on pedal let off. Only 35K miles, and I've already had the fluid flushed to no avail. Sounds like the start clutch issue described here, but it should be a torque converter driven CVT in 2018

[@streetrider2487]

are Nissan Jatco CVT really much more unreliable than Honda CVT?

[@WeberAuto]

Good question. Thanks for watching

[@JohnS-il1dr]

nope. jatco is the worst. Aisin cvt is rated the best.

[@chromalusion15]

A honda freed cvt reached 7million KM mileage based on japanese seller online site. Honda's durability is the best in the world.

[@UssGo]

I have a civic hybrid second gen woth cvt trans. It makes grinding sound when put in D or R. And it gets worse when driving till 100kph. Then it's gone.

[@skyguy1988]

cvts are very good transmissions that allow for lots of torque at all times throughout a nice gradual curve.

[@questionssm]

I am confused is the flywheel touching the start clutch?

[@juanluismillanruiz6425]

the second drive pulley under start clutch the spring or ring inside is some loose this is right because the order is tight

[@WeberAuto]

+juan luis millan ruiz Yes, there is an updated designed start clutch now. Thanks for watching!

[@claramunoz2807]

Like how much is it in total

[@pimpofdamideast]

Impossible to tell without teardown of the transmission

[@dynamo3059]

do these hold up as well as geared transmissions?

[@sgtpepper6379]

Nope

[@dynamo3059]

@grandmasterchess choe that could be because the first cvt wasn't installed until 2014. the autos date back much longer than that.

[@grumpycalenzana7514]

@@dynamo3059 " the first cvt wasn't installed until 2014. " ??? Say WHAT ??? DAF nineteen fifty eight as in 1958.

[@dynamo3059]

@@grumpycalenzana7514 i meant on the honda civic

[@mb013962]

in the description you put honda crv instead of crz

[@augutojunior1234]

I have 13 accord with cvt transmission ,never have issues, the car is very good car good gas milage

[@WeberAuto]

Thanks for the feedback!

[@sgtpepper6379]

Lmao at the time of posting it was a 3 year old car... Wow what an amazing feat...

[@gl3556]

Thanks for the great videos. As for the beginner, can you give some ideas on why honda seems more reliable or make some comparisons on different brand engines, thanks.

[@christurner6430]

Maybe the recommended oil change intervals are different. My Hybrid Jazz specifies change 2 yearly or 25,000 miles. Cheaper engineering to change the oil rather than the gearbox!

[@magedfaroukzaki8279]

Really nice demo

[@salamjameel9842]

I have BYD G3 The problem i had with flywheel Noise when driving

[@WeberAuto]

I am sorry, I know nothing about that model. Best wishes.

[@mrrogersrabbit]

This is very helpful, thank you. I'm pretty sure that rattling nose in my car is the start clutch.

[@WeberAuto]

Thanks for watching

[@gregparrott]

Thanks for the effort you've put into your many instructional videos. My understanding is that the metal 'push' belts are more efficient than the rubber 'pull' belts that are still used in snowmobiles and ATVs. It has also been suggested that the push belts may allow a greater range between the highest and lowest input/output ratios. Do you know if both of these assertions are true? Also, on snowmobiles and ATVs, control of the input/output ratio is pre-set by selection of springs, weights and helix shapes. But the automotive CVTs have programmable, electronic control. Do you have a video or a reference to material describing how an electronic system controls the separation of the sheaves?

[@WeberAuto]

+Gregory Parrott Hi, yes, you are correct. I do not have a video on the CVT controls yet. I hope to this summer. Thanks for watching!

[@gregparrott]

+WeberAuto Thanks! The part which most intrigues me is whatever mechanical means/mechanism they use that interfaces between the non rotating transmission body and the sliding spider assembly located on the outer drive sheave. If the inner sheave slid instead, it would be easier to apply an external control. But for some reason, the drive pulley always seems to have its sliding sheave mounted to the outside and it seems the drive ratio is primarily set on the drive pulley, not the driven pulley.

[@SavitriHSirju]

Keep up the good work bro thank

[@rogerdinarte6863]

Awesome detail video, definitely interested in watching all your videos. Just subscribed. Love learning and keeping me updated. 👍👍

[@rondhole]

I think this is the reason why Honda Hybrid is not as reliable as Ford or Toyota. They still use Belt type CVT instead of Planetary gears.

[@SuperShorty1956]

why the damper is to close to the star drum

[@TheVortex28]

Good video i dint know how it works its amazing but i think a better belt would be good.

[@yvairguy]

why do honda's always feel like they are hunting/surging? 2015 CRV drove me nuts

[@WeberAuto]

The engine rpm and the CVT pulley ratio make changes in an attempt to meet the driver's input (acceleration, deceleration, vehicle speed, etc.) they do feel different and can take a while to get used to.

[@sandratutor7402]

The one in my Impreza gave up at 70,000 miles

[@HakoFrost]

my neighbors 2014 crosstrek just passed 400k km this year. still more reliable than fords powershift dct.

[@fcguy7]

I have a correction for you. The generic term "CVT" does not mean continuously variable trans-axle. It stands for continuously variable *transmission. This application so happens to be included in a trans-axle.

[@WeberAuto]

Good catch, thank you. I fixed it.

[@markpsomas5337]

Yes I understand that but I wasn't trying to be rude I'm sorry if it came across that way I'm just putting in my opinion to about how very good they are anyway yes and everything you said on your video is absolutely right keep making them

[@WeberAuto]

Thank you

[@ArrowsFlight]

Thank you for this video :)

[@WeberAuto]

You are welcome

[@xaniellkowalski7045]

Hat Honda Civic 10 cvt auch ein Stahlband

[@GF-mf7ml]

Only Honda really know how to make fast reliable CVT.

[@evandilauro9550]

4:37

[@sohanhossen7009]

Honda city 2018 CVT problem

[@WeberAuto]

Thanks for watching

[@josedominguez2021]

Thaks for the vdo. U R a Master!!!!!!! Thanks a lot...........

[@WeberAuto]

Thank you very much!

[@buckshot6481]

Honda has done something better compared to Jatco. The Accord I drove didn't have cvt lag. Still don't know what wrong with a six speed .

[@WeberAuto]

Thanks for your feedback!

[@davidjames4583]

i bought a 2014 Honda Accord Ex last year.... i don't have any complaints so far....what i really like about it is that there is no "shift shock" when i pass another vehicle... and my Accord is doing 37 mpg on the highway... 28 mpg city...

[@josebermudez8425]

I ned more información

[@brandonp4]

I subscribed, these are intersting videos, keep it up.

[@चेतन_महाराष्ट्र]

Seems that cvt drive belts are not durable enough and may be the weakest link in the chain. If a drive belt can fail in a civic, we can imagine that it won't hold strong enough for heavier cars.

[@Carlitosway211]

Exactly! These transmissions work great in four wheels, scooters, and side by sides, but they need to stay there. CVTs have no business on the street. Too expensive and too many failures due to not handling the load.

[@mrkongsimr]

When I was a child , being now 53 , there was car called DAF from Holland and it had this kind of transmission . Then it became Volvo (junk).